18 Inch Doll Backpack, Doll Size for Plush Animals or 18 Inch Doll Accessories and American Girl Dolls in Purple Nylon, Zippered Opening and Pocket in Purple 18 Inch Doll's Backpack SIZED FOR 18 Purple Nylon Backpack with Front Pocket fits American Girl Dolls, Madame Alexander, Sophia's Dolls & More! Black & White Striped Straps. Measures 4.5" in height and 4" in width and 1" in depth. Doll or Plush Toy Sized Backpack! Made by Sophia's, Leading Doll Clothes Manufacturer, Not affiliated with American Girl, Reg. Trademark of American Girl, LLC.